US12656299B2 - Gas sensor element and gas sensor - Google Patents

Gas sensor element and gas sensor

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Publication number
US12656299B2
US12656299B2 US18/467,042 US202318467042A US12656299B2 US 12656299 B2 US12656299 B2 US 12656299B2 US 202318467042 A US202318467042 A US 202318467042A US 12656299 B2 US12656299 B2 US 12656299B2
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United States
Prior art keywords
protective layer
porosity
element body
inner protective
standard deviation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Application number
US18/467,042
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English (en)
Other versions
US20240003841A1 (en
Inventor
Ryo Onishi
Kaoru Shibutani
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NGK Insulators Ltd
Original Assignee
NGK Insulators Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NGK Insulators Ltd filed Critical NGK Insulators Ltd
Assigned to NGK INSULATORS, LTD. reassignment NGK INSULATORS, LTD. ASSIGNMENT OF ASSIGNOR'S INTEREST Assignors: ONISHI, RYO, SHIBUTANI, Kaoru
Publication of US20240003841A1 publication Critical patent/US20240003841A1/en
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
    • G01N27/403—Cells and electrode assemblies
    • G01N27/406—Cells and probes with solid electrolytes
    • G01N27/407—Cells and probes with solid electrolytes for investigating or analysing gases
    • G01N27/4077—Means for protecting the electrolyte or the electrodes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N11/00—Monitoring or diagnostic devices for exhaust-gas treatment apparatus
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
    • G01N27/28—Electrolytic cell components
    • G01N27/30—Electrodes, e.g. test electrodes; Half-cells
    • G01N27/304—Gas permeable electrodes
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
    • G01N27/403—Cells and electrode assemblies
    • G01N27/406—Cells and probes with solid electrolytes
    • G01N27/407—Cells and probes with solid electrolytes for investigating or analysing gases
    • G01N27/41—Oxygen pumping cells
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/0004—Gaseous mixtures, e.g. polluted air
    • G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
    • G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/0004—Gaseous mixtures, e.g. polluted air
    • G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
    • G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
    • G01N33/0036—General constructional details of gas analysers, e.g. portable test equipment concerning the detector specially adapted to detect a particular component
    • G01N33/0037—NOx
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N2510/00—Surface coverings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N2560/00—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics
    • F01N2560/02—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being an exhaust gas sensor
    • F01N2560/026—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being an exhaust gas sensor for measuring or detecting NOx

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Pathology (AREA)
  • Immunology (AREA)
  • Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Molecular Biology (AREA)
  • Electrochemistry (AREA)
  • Combustion & Propulsion (AREA)
  • Medicinal Chemistry (AREA)
  • Food Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Measuring Oxygen Concentration In Cells (AREA)
US18/467,042 2021-03-16 2023-09-14 Gas sensor element and gas sensor Active 2042-09-25 US12656299B2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2021042258 2021-03-16
JP2021-042258 2021-03-16
PCT/JP2022/006368 WO2022196233A1 (ja) 2021-03-16 2022-02-17 ガスセンサ素子及びガスセンサ

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2022/006368 Continuation WO2022196233A1 (ja) 2021-03-16 2022-02-17 ガスセンサ素子及びガスセンサ

Publications (2)

Publication Number Publication Date
US20240003841A1 US20240003841A1 (en) 2024-01-04
US12656299B2 true US12656299B2 (en) 2026-06-16

Family

ID=83322279

Family Applications (1)

Application Number Title Priority Date Filing Date
US18/467,042 Active 2042-09-25 US12656299B2 (en) 2021-03-16 2023-09-14 Gas sensor element and gas sensor

Country Status (5)

Country Link
US (1) US12656299B2 (ja)
JP (1) JP7762194B2 (ja)
CN (1) CN116897284B (ja)
DE (1) DE112022000574T5 (ja)
WO (1) WO2022196233A1 (ja)

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011214853A (ja) 2010-03-31 2011-10-27 Ngk Insulators Ltd ガスセンサ素子の製造方法
JP2012173146A (ja) * 2011-02-22 2012-09-10 Ngk Spark Plug Co Ltd ガスセンサ素子及びガスセンサ
JP2013036940A (ja) 2011-08-10 2013-02-21 Denso Corp ガスセンサ素子の製造方法
JP2013054025A (ja) 2011-08-10 2013-03-21 Denso Corp ガスセンサ素子及びその製造方法
US20150268187A1 (en) 2014-03-19 2015-09-24 Ngk Insulators, Ltd. Gas sensor
JP2016065852A (ja) 2014-03-28 2016-04-28 日本碍子株式会社 ガスセンサの製造方法
US20170284958A1 (en) * 2016-03-30 2017-10-05 Ngk Insulators, Ltd. Sensor element and gas sensor
JP2017187482A (ja) 2016-03-30 2017-10-12 日本碍子株式会社 センサ素子及びガスセンサ
JP2018112492A (ja) 2017-01-12 2018-07-19 日本特殊陶業株式会社 ガスセンサ素子およびガスセンサ
US20180284055A1 (en) * 2017-03-30 2018-10-04 Ngk Insulators, Ltd. Gas sensor element
US20200271618A1 (en) 2019-02-26 2020-08-27 Ngk Insulators, Ltd. Gas sensor element and gas sensor

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA3028321C (en) 2006-01-23 2022-06-21 Athersys, Inc. Mapc treatment of brain injuries and diseases
JP7157595B2 (ja) * 2018-08-30 2022-10-20 日本碍子株式会社 センサ素子
JP7089990B2 (ja) * 2018-08-30 2022-06-23 日本碍子株式会社 センサ素子
JP7288783B2 (ja) * 2019-03-28 2023-06-08 日本碍子株式会社 センサ素子及びガスセンサ

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011214853A (ja) 2010-03-31 2011-10-27 Ngk Insulators Ltd ガスセンサ素子の製造方法
JP2012173146A (ja) * 2011-02-22 2012-09-10 Ngk Spark Plug Co Ltd ガスセンサ素子及びガスセンサ
JP2013036940A (ja) 2011-08-10 2013-02-21 Denso Corp ガスセンサ素子の製造方法
JP2013054025A (ja) 2011-08-10 2013-03-21 Denso Corp ガスセンサ素子及びその製造方法
US20150268187A1 (en) 2014-03-19 2015-09-24 Ngk Insulators, Ltd. Gas sensor
JP2015178988A (ja) 2014-03-19 2015-10-08 日本碍子株式会社 ガスセンサ
JP2016065852A (ja) 2014-03-28 2016-04-28 日本碍子株式会社 ガスセンサの製造方法
US20170284958A1 (en) * 2016-03-30 2017-10-05 Ngk Insulators, Ltd. Sensor element and gas sensor
JP2017187482A (ja) 2016-03-30 2017-10-12 日本碍子株式会社 センサ素子及びガスセンサ
JP2018112492A (ja) 2017-01-12 2018-07-19 日本特殊陶業株式会社 ガスセンサ素子およびガスセンサ
US20180284055A1 (en) * 2017-03-30 2018-10-04 Ngk Insulators, Ltd. Gas sensor element
US20200271618A1 (en) 2019-02-26 2020-08-27 Ngk Insulators, Ltd. Gas sensor element and gas sensor
CN111610243A (zh) 2019-02-26 2020-09-01 日本碍子株式会社 气体传感器元件及气体传感器

Non-Patent Citations (8)

* Cited by examiner, † Cited by third party
Title
Chinese Office Action received in corresponding Chinese Application No. 202280008013.6 dated Dec. 24, 2025.
International Preliminary Report on Patentability and Written Opinion received in corresponding International Application No. PCT/JP2022/006368 dated Sep. 28, 2023.
International Search Report of PCT/JP2022/006368 dated Apr. 5, 2022.
Mitsuoka et al., JP2012173146A, English translation, 2012 (Year: 2012). *
Chinese Office Action received in corresponding Chinese Application No. 202280008013.6 dated Dec. 24, 2025.
International Preliminary Report on Patentability and Written Opinion received in corresponding International Application No. PCT/JP2022/006368 dated Sep. 28, 2023.
International Search Report of PCT/JP2022/006368 dated Apr. 5, 2022.
Mitsuoka et al., JP2012173146A, English translation, 2012 (Year: 2012). *

Also Published As

Publication number Publication date
JPWO2022196233A1 (ja) 2022-09-22
CN116897284B (zh) 2026-07-21
JP7762194B2 (ja) 2025-10-29
WO2022196233A1 (ja) 2022-09-22
DE112022000574T5 (de) 2023-10-26
US20240003841A1 (en) 2024-01-04
CN116897284A (zh) 2023-10-17

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